HIGH-TECH: This 2 in 1 smoke and carbon monoxide alarm has a built-in ligent chipset. LED light is green in normal and turn red in emergency, fire alarms smoke detectors detect the safety of your house at anytime
INSTALL EASILY: Smoke alarm (not hardwired) can be installed in 5 minutes by yourself, coming with screws and bracket. Smoke alarms can be mounted in ceiling or wall of every room, bedroom, kitchen to ensure the safety of you and your family